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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-10 23:12:01 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-12 13:35:23 -0400 |
| commit | 5522be6a4624a5f505555569e4d9cee946630686 (patch) | |
| tree | 27a240cfb4dd0966be2f819319ca44097950878d /arch | |
| parent | 9fff2fa0db911b0b75ec1f9bec72460c0a676ef5 (diff) | |
| download | lwn-5522be6a4624a5f505555569e4d9cee946630686.tar.gz lwn-5522be6a4624a5f505555569e4d9cee946630686.zip | |
alpha: switch to saner kernel_execve() semantics
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/alpha/Kconfig | 1 | ||||
| -rw-r--r-- | arch/alpha/include/asm/unistd.h | 1 | ||||
| -rw-r--r-- | arch/alpha/kernel/entry.S | 17 |
3 files changed, 2 insertions, 17 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 7da91246e279..7a08cfb80ee8 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -21,6 +21,7 @@ config ALPHA select GENERIC_STRNCPY_FROM_USER select GENERIC_STRNLEN_USER select GENERIC_KERNEL_THREAD + select GENERIC_KERNEL_EXECVE help The Alpha is a 64-bit general-purpose processor designed and marketed by the Digital Equipment Corporation of blessed memory, diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h index 3cb6c1188984..7826e227e4d0 100644 --- a/arch/alpha/include/asm/unistd.h +++ b/arch/alpha/include/asm/unistd.h @@ -482,7 +482,6 @@ #define __ARCH_WANT_SYS_SIGPENDING #define __ARCH_WANT_SYS_RT_SIGSUSPEND #define __ARCH_WANT_SYS_EXECVE -#define __ARCH_WANT_KERNEL_EXECVE /* "Conditional" syscalls. What we want is diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S index 16e074f9e581..a7607832dd4f 100644 --- a/arch/alpha/kernel/entry.S +++ b/arch/alpha/kernel/entry.S @@ -603,24 +603,9 @@ ret_from_kernel_thread: mov $9, $27 mov $10, $16 jsr $26, ($9) - ldgp $gp, 0($26) - mov $0, $16 - mov $31, $26 - jmp $31, sys_exit -.end ret_from_kernel_thread - - .globl ret_from_kernel_execve - .align 4 - .ent ret_from_kernel_execve -ret_from_kernel_execve: - mov $16, $sp - /* Avoid the HAE being gratuitously wrong, to avoid restoring it. */ - ldq $2, alpha_mv+HAE_CACHE - stq $2, 152($sp) /* HAE */ mov $31, $19 /* to disable syscall restarts */ br $31, ret_to_user - -.end ret_from_kernel_execve +.end ret_from_kernel_thread /* |